Hi Goygal, I can see no Spider Mite only an ordinary Spider in the corner there.

Yes, that's exactly what I thought... BUT I have something else on the back of the leaves.. and it won't wipe off.
I don't suppose you know if Spiders DO eat spider mite?
;-}

Not to the best of my knowledge, flies and other winged insects that they catch in their webs.

If you do have a problem, predatory mites are available here................

http://www.harrodhorticultural.com/HarrodSite/pages/product/product.asp?prod=GPC-535&cookie_test=1

or google; Phytoseiulus persimilis

Can you not post a picture of the back of an affected leaf

Thanks for the link to the mite predators, Meanie.
Moon, I think you are right... maybe they DO only like flying food. ( or as it were, EX flying food.)
Pimpernel, I did post a pic, but it is in a different page.
http://www.growsonyou.com/photo/slideshow/224208
HTH :-)